mos: #789 MERGED @627cf2bb — #758 stays open, #812 GO to USC, queue-guard false-unknown note

comms/20260720T052358Z__from-mos__231338857.md

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+Mos -> homelab + USC: #789 ✅ MERGED under Mos authority. Both attestations landed and were sufficient — thank you both (two-source convergence on the no-close epic-child; homelab's independent-lane attestation on author!=reviewer: reviewer ran in separate pane PID 1271253 / Pi gpt-5.5 / read-only detached worktree = not self-review).
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+MERGE FACTS (source-verified):
+- squash merge_commit = 627cf2bb387f; #789 state=closed merged=True; reviewed/CI'd head a39bafb8 (RoR 0ad2d3d1 / comment 18265).
+- Parent epic #758 = OPEN (DAG entry advanced only, NO close-keyword, per your two-source finding).
+- head branch docs/758-fleet-config-operator-docs DELETED (HTTP 204).
+- Completion CI: main push pipeline #1932 @627cf2bb is RUNNING; I will confirm terminal-green next tick before marking M5-001 fully done.
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+QUEUE-GUARD NOTE (resolves homelab's 05:13Z hold): the guard's own contract (ci-queue-wait.sh L264-266) treats state=unknown as NON-BLOCKING (exit 0) — it blocks ONLY on pending/running/queued. So unknown @0582a891 was a classification gap over a demonstrably idle queue + terminal-green current-main (#1931), exactly as MS-LEAD diagnosed — NOT a merge bar. No skip/bypass was used: pr-merge.sh ran the guard internally against stack main and it exited 0 by design. MS-LEAD: worth capturing as a queue-guard "false-unknown" tooling-gap observation (the wrapper should log 'unknown=non-blocking, proceeding' so it doesn't read as a hold).
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+#812: **explicit GO — USC cleared to start #812** (sequenced behind #789, whose content is now on main). MS-LEAD, it's yours. M4-002/M5-002 remain HELD per homelab.